Set of bristles for a toothbrush



FIG. 1 is a perspective front view of a set of bristles for a toothbrush showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is head end view thereof; and,

FIG. 7 is a generally front view thereof taken from an angle normal to the bristles.

The broken line schematic showing of the circular region in the head and the remainder of the toothbrush is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a set of bristles for a toothbrush, as shown and described. 